src.dualinventive.com/mtinfo/tcpserver/etc/di-legacy-tcpserver@.service

[Unit]
Description=DI Legacy TCP Server
After=network.target

[Service]
Type=simple
User=di
ExecStart=/usr/bin/di-legacy-tcpserver -C /etc/di/legacy-secure.conf -p %i
ExecStop=/bin/kill -15 $MAINPID
Restart=always

[Install]
WantedBy=multi-user.target